20578740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3769}}^1$

素因数の和:3801

約数の個数: 96

約数和(自身を含む): 70936320

約数和(自身を除く): 50357580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 3769, 5460, 7538, 11307, 15076, 18845, 22614, 26383, 37690, 45228, 48997, 52766, 56535, 75380, 79149, 97994, 105532, 113070, 131915, 146991, 158298, 195988, 226140, 244985, 263830, 293982, 316596, 342979, 395745, 489970, 527660, 587964, 685958, 734955, 791490, 979940, 1028937, 1371916, 1469910, 1582980, 1714895, 2057874, 2939820, 3429790, 4115748, 5144685, 6859580, 10289370, 20578740]

約数ペア:

[(1, 20578740), (2, 10289370), (3, 6859580), (4, 5144685), (5, 4115748), (6, 3429790), (7, 2939820), (10, 2057874), (12, 1714895), (13, 1582980), (14, 1469910), (15, 1371916), (20, 1028937), (21, 979940), (26, 791490), (28, 734955), (30, 685958), (35, 587964), (39, 527660), (42, 489970), (52, 395745), (60, 342979), (65, 316596), (70, 293982), (78, 263830), (84, 244985), (91, 226140), (105, 195988), (130, 158298), (140, 146991), (156, 131915), (182, 113070), (195, 105532), (210, 97994), (260, 79149), (273, 75380), (364, 56535), (390, 52766), (420, 48997), (455, 45228), (546, 37690), (780, 26383), (910, 22614), (1092, 18845), (1365, 15076), (1820, 11307), (2730, 7538), (3769, 5460)]