221773020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{241}}^1\times {\mathrm{313}}^1$

素因数の和:580

約数の個数: 144

約数和(自身を含む): 727661088

約数和(自身を除く): 505888068

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 241, 245, 294, 313, 420, 482, 490, 588, 626, 723, 735, 939, 964, 980, 1205, 1252, 1446, 1470, 1565, 1687, 1878, 2191, 2410, 2892, 2940, 3130, 3374, 3615, 3756, 4382, 4695, 4820, 5061, 6260, 6573, 6748, 7230, 8435, 8764, 9390, 10122, 10955, 11809, 13146, 14460, 15337, 16870, 18780, 20244, 21910, 23618, 25305, 26292, 30674, 32865, 33740, 35427, 43820, 46011, 47236, 50610, 59045, 61348, 65730, 70854, 75433, 76685, 92022, 101220, 118090, 131460, 141708, 150866, 153370, 177135, 184044, 226299, 230055, 236180, 301732, 306740, 354270, 377165, 452598, 460110, 528031, 708540, 754330, 905196, 920220, 1056062, 1131495, 1508660, 1584093, 2112124, 2262990, 2640155, 3168186, 3696217, 4525980, 5280310, 6336372, 7392434, 7920465, 10560620, 11088651, 14784868, 15840930, 18481085, 22177302, 31681860, 36962170, 44354604, 55443255, 73924340, 110886510, 221773020]

約数ペア:

[(1, 221773020), (2, 110886510), (3, 73924340), (4, 55443255), (5, 44354604), (6, 36962170), (7, 31681860), (10, 22177302), (12, 18481085), (14, 15840930), (15, 14784868), (20, 11088651), (21, 10560620), (28, 7920465), (30, 7392434), (35, 6336372), (42, 5280310), (49, 4525980), (60, 3696217), (70, 3168186), (84, 2640155), (98, 2262990), (105, 2112124), (140, 1584093), (147, 1508660), (196, 1131495), (210, 1056062), (241, 920220), (245, 905196), (294, 754330), (313, 708540), (420, 528031), (482, 460110), (490, 452598), (588, 377165), (626, 354270), (723, 306740), (735, 301732), (939, 236180), (964, 230055), (980, 226299), (1205, 184044), (1252, 177135), (1446, 153370), (1470, 150866), (1565, 141708), (1687, 131460), (1878, 118090), (2191, 101220), (2410, 92022), (2892, 76685), (2940, 75433), (3130, 70854), (3374, 65730), (3615, 61348), (3756, 59045), (4382, 50610), (4695, 47236), (4820, 46011), (5061, 43820), (6260, 35427), (6573, 33740), (6748, 32865), (7230, 30674), (8435, 26292), (8764, 25305), (9390, 23618), (10122, 21910), (10955, 20244), (11809, 18780), (13146, 16870), (14460, 15337)]