20193390

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:287

約数の個数: 144

約数和(自身を含む): 64555920

約数和(自身を除く): 44362530

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 38, 42, 45, 49, 57, 63, 70, 90, 95, 98, 105, 114, 126, 133, 147, 171, 190, 210, 241, 245, 266, 285, 294, 315, 342, 399, 441, 482, 490, 570, 630, 665, 723, 735, 798, 855, 882, 931, 1197, 1205, 1330, 1446, 1470, 1687, 1710, 1862, 1995, 2169, 2205, 2394, 2410, 2793, 3374, 3615, 3990, 4338, 4410, 4579, 4655, 5061, 5586, 5985, 7230, 8379, 8435, 9158, 9310, 10122, 10845, 11809, 11970, 13737, 13965, 15183, 16758, 16870, 21690, 22895, 23618, 25305, 27474, 27930, 30366, 32053, 35427, 41211, 41895, 45790, 50610, 59045, 64106, 68685, 70854, 75915, 82422, 83790, 96159, 106281, 118090, 137370, 151830, 160265, 177135, 192318, 206055, 212562, 224371, 288477, 320530, 354270, 412110, 448742, 480795, 531405, 576954, 673113, 961590, 1062810, 1121855, 1346226, 1442385, 2019339, 2243710, 2884770, 3365565, 4038678, 6731130, 10096695, 20193390]

約数ペア:

[(1, 20193390), (2, 10096695), (3, 6731130), (5, 4038678), (6, 3365565), (7, 2884770), (9, 2243710), (10, 2019339), (14, 1442385), (15, 1346226), (18, 1121855), (19, 1062810), (21, 961590), (30, 673113), (35, 576954), (38, 531405), (42, 480795), (45, 448742), (49, 412110), (57, 354270), (63, 320530), (70, 288477), (90, 224371), (95, 212562), (98, 206055), (105, 192318), (114, 177135), (126, 160265), (133, 151830), (147, 137370), (171, 118090), (190, 106281), (210, 96159), (241, 83790), (245, 82422), (266, 75915), (285, 70854), (294, 68685), (315, 64106), (342, 59045), (399, 50610), (441, 45790), (482, 41895), (490, 41211), (570, 35427), (630, 32053), (665, 30366), (723, 27930), (735, 27474), (798, 25305), (855, 23618), (882, 22895), (931, 21690), (1197, 16870), (1205, 16758), (1330, 15183), (1446, 13965), (1470, 13737), (1687, 11970), (1710, 11809), (1862, 10845), (1995, 10122), (2169, 9310), (2205, 9158), (2394, 8435), (2410, 8379), (2793, 7230), (3374, 5985), (3615, 5586), (3990, 5061), (4338, 4655), (4410, 4579)]