18808740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{571}}^1$

素因数の和:650

約数の個数: 96

約数和(自身を含む): 59579520

約数和(自身を除く): 40770780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 90, 108, 122, 135, 180, 183, 244, 270, 305, 366, 540, 549, 571, 610, 732, 915, 1098, 1142, 1220, 1647, 1713, 1830, 2196, 2284, 2745, 2855, 3294, 3426, 3660, 5139, 5490, 5710, 6588, 6852, 8235, 8565, 10278, 10980, 11420, 15417, 16470, 17130, 20556, 25695, 30834, 32940, 34260, 34831, 51390, 61668, 69662, 77085, 102780, 104493, 139324, 154170, 174155, 208986, 308340, 313479, 348310, 417972, 522465, 626958, 696620, 940437, 1044930, 1253916, 1567395, 1880874, 2089860, 3134790, 3761748, 4702185, 6269580, 9404370, 18808740]

約数ペア:

[(1, 18808740), (2, 9404370), (3, 6269580), (4, 4702185), (5, 3761748), (6, 3134790), (9, 2089860), (10, 1880874), (12, 1567395), (15, 1253916), (18, 1044930), (20, 940437), (27, 696620), (30, 626958), (36, 522465), (45, 417972), (54, 348310), (60, 313479), (61, 308340), (90, 208986), (108, 174155), (122, 154170), (135, 139324), (180, 104493), (183, 102780), (244, 77085), (270, 69662), (305, 61668), (366, 51390), (540, 34831), (549, 34260), (571, 32940), (610, 30834), (732, 25695), (915, 20556), (1098, 17130), (1142, 16470), (1220, 15417), (1647, 11420), (1713, 10980), (1830, 10278), (2196, 8565), (2284, 8235), (2745, 6852), (2855, 6588), (3294, 5710), (3426, 5490), (3660, 5139)]