17891390420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{677}}^1\times {\mathrm{787}}^1$

素因数の和:1569

約数の個数: 96

約数和(自身を含む): 39851820288

約数和(自身を除く): 21960429868

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 73, 92, 115, 146, 230, 292, 365, 460, 677, 730, 787, 1354, 1460, 1574, 1679, 2708, 3148, 3358, 3385, 3935, 6716, 6770, 7870, 8395, 13540, 15571, 15740, 16790, 18101, 31142, 33580, 36202, 49421, 57451, 62284, 72404, 77855, 90505, 98842, 114902, 155710, 181010, 197684, 229804, 247105, 287255, 311420, 362020, 494210, 532799, 574510, 988420, 1065598, 1136683, 1149020, 1321373, 2131196, 2273366, 2642746, 2663995, 4546732, 5285492, 5327990, 5683415, 6606865, 10655980, 11366830, 12254377, 13213730, 22733660, 24508754, 26427460, 38894327, 49017508, 61271885, 77788654, 122543770, 155577308, 194471635, 245087540, 388943270, 777886540, 894569521, 1789139042, 3578278084, 4472847605, 8945695210, 17891390420]

約数ペア:

[(1, 17891390420), (2, 8945695210), (4, 4472847605), (5, 3578278084), (10, 1789139042), (20, 894569521), (23, 777886540), (46, 388943270), (73, 245087540), (92, 194471635), (115, 155577308), (146, 122543770), (230, 77788654), (292, 61271885), (365, 49017508), (460, 38894327), (677, 26427460), (730, 24508754), (787, 22733660), (1354, 13213730), (1460, 12254377), (1574, 11366830), (1679, 10655980), (2708, 6606865), (3148, 5683415), (3358, 5327990), (3385, 5285492), (3935, 4546732), (6716, 2663995), (6770, 2642746), (7870, 2273366), (8395, 2131196), (13540, 1321373), (15571, 1149020), (15740, 1136683), (16790, 1065598), (18101, 988420), (31142, 574510), (33580, 532799), (36202, 494210), (49421, 362020), (57451, 311420), (62284, 287255), (72404, 247105), (77855, 229804), (90505, 197684), (98842, 181010), (114902, 155710)]