19798380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{827}}^1$

素因数の和:868

約数の個数: 144

約数和(自身を含む): 72334080

約数和(自身を除く): 52535700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 798, 827, 855, 1140, 1197, 1260, 1330, 1596, 1654, 1710, 1995, 2394, 2481, 2660, 3308, 3420, 3990, 4135, 4788, 4962, 5789, 5985, 7443, 7980, 8270, 9924, 11578, 11970, 12405, 14886, 15713, 16540, 17367, 23156, 23940, 24810, 28945, 29772, 31426, 34734, 37215, 47139, 49620, 52101, 57890, 62852, 69468, 74430, 78565, 86835, 94278, 104202, 109991, 115780, 141417, 148860, 157130, 173670, 188556, 208404, 219982, 235695, 260505, 282834, 314260, 329973, 347340, 439964, 471390, 521010, 549955, 565668, 659946, 707085, 942780, 989919, 1042020, 1099910, 1319892, 1414170, 1649865, 1979838, 2199820, 2828340, 3299730, 3959676, 4949595, 6599460, 9899190, 19798380]

約数ペア:

[(1, 19798380), (2, 9899190), (3, 6599460), (4, 4949595), (5, 3959676), (6, 3299730), (7, 2828340), (9, 2199820), (10, 1979838), (12, 1649865), (14, 1414170), (15, 1319892), (18, 1099910), (19, 1042020), (20, 989919), (21, 942780), (28, 707085), (30, 659946), (35, 565668), (36, 549955), (38, 521010), (42, 471390), (45, 439964), (57, 347340), (60, 329973), (63, 314260), (70, 282834), (76, 260505), (84, 235695), (90, 219982), (95, 208404), (105, 188556), (114, 173670), (126, 157130), (133, 148860), (140, 141417), (171, 115780), (180, 109991), (190, 104202), (210, 94278), (228, 86835), (252, 78565), (266, 74430), (285, 69468), (315, 62852), (342, 57890), (380, 52101), (399, 49620), (420, 47139), (532, 37215), (570, 34734), (630, 31426), (665, 29772), (684, 28945), (798, 24810), (827, 23940), (855, 23156), (1140, 17367), (1197, 16540), (1260, 15713), (1330, 14886), (1596, 12405), (1654, 11970), (1710, 11578), (1995, 9924), (2394, 8270), (2481, 7980), (2660, 7443), (3308, 5985), (3420, 5789), (3990, 4962), (4135, 4788)]