278456220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:401

約数の個数: 216

約数和(自身を含む): 994161168

約数和(自身を除く): 715704948

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 131, 140, 147, 180, 196, 210, 241, 245, 252, 262, 294, 315, 393, 420, 441, 482, 490, 524, 588, 630, 655, 723, 735, 786, 882, 917, 964, 980, 1179, 1205, 1260, 1310, 1446, 1470, 1572, 1687, 1764, 1834, 1965, 2169, 2205, 2358, 2410, 2620, 2751, 2892, 2940, 3374, 3615, 3668, 3930, 4338, 4410, 4585, 4716, 4820, 5061, 5502, 5895, 6419, 6748, 7230, 7860, 8253, 8435, 8676, 8820, 9170, 10122, 10845, 11004, 11790, 11809, 12838, 13755, 14460, 15183, 16506, 16870, 18340, 19257, 20244, 21690, 23580, 23618, 25305, 25676, 27510, 30366, 31571, 32095, 33012, 33740, 35427, 38514, 41265, 43380, 47236, 50610, 55020, 57771, 59045, 60732, 63142, 64190, 70854, 75915, 77028, 82530, 94713, 96285, 101220, 106281, 115542, 118090, 126284, 128380, 141708, 151830, 157855, 165060, 177135, 189426, 192570, 212562, 220997, 231084, 236180, 284139, 288855, 303660, 315710, 354270, 378852, 385140, 425124, 441994, 473565, 531405, 568278, 577710, 631420, 662991, 708540, 883988, 947130, 1062810, 1104985, 1136556, 1155420, 1325982, 1420695, 1546979, 1894260, 1988973, 2125620, 2209970, 2651964, 2841390, 3093958, 3314955, 3977946, 4419940, 4640937, 5682780, 6187916, 6629910, 7734895, 7955892, 9281874, 9944865, 13259820, 13922811, 15469790, 18563748, 19889730, 23204685, 27845622, 30939580, 39779460, 46409370, 55691244, 69614055, 92818740, 139228110, 278456220]

約数ペア:

[(1, 278456220), (2, 139228110), (3, 92818740), (4, 69614055), (5, 55691244), (6, 46409370), (7, 39779460), (9, 30939580), (10, 27845622), (12, 23204685), (14, 19889730), (15, 18563748), (18, 15469790), (20, 13922811), (21, 13259820), (28, 9944865), (30, 9281874), (35, 7955892), (36, 7734895), (42, 6629910), (45, 6187916), (49, 5682780), (60, 4640937), (63, 4419940), (70, 3977946), (84, 3314955), (90, 3093958), (98, 2841390), (105, 2651964), (126, 2209970), (131, 2125620), (140, 1988973), (147, 1894260), (180, 1546979), (196, 1420695), (210, 1325982), (241, 1155420), (245, 1136556), (252, 1104985), (262, 1062810), (294, 947130), (315, 883988), (393, 708540), (420, 662991), (441, 631420), (482, 577710), (490, 568278), (524, 531405), (588, 473565), (630, 441994), (655, 425124), (723, 385140), (735, 378852), (786, 354270), (882, 315710), (917, 303660), (964, 288855), (980, 284139), (1179, 236180), (1205, 231084), (1260, 220997), (1310, 212562), (1446, 192570), (1470, 189426), (1572, 177135), (1687, 165060), (1764, 157855), (1834, 151830), (1965, 141708), (2169, 128380), (2205, 126284), (2358, 118090), (2410, 115542), (2620, 106281), (2751, 101220), (2892, 96285), (2940, 94713), (3374, 82530), (3615, 77028), (3668, 75915), (3930, 70854), (4338, 64190), (4410, 63142), (4585, 60732), (4716, 59045), (4820, 57771), (5061, 55020), (5502, 50610), (5895, 47236), (6419, 43380), (6748, 41265), (7230, 38514), (7860, 35427), (8253, 33740), (8435, 33012), (8676, 32095), (8820, 31571), (9170, 30366), (10122, 27510), (10845, 25676), (11004, 25305), (11790, 23618), (11809, 23580), (12838, 21690), (13755, 20244), (14460, 19257), (15183, 18340), (16506, 16870)]