19794612500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{673}}^1$

素因数の和:896

約数の個数: 144

約数和(自身を含む): 46955838384

約数和(自身を除く): 27161225884

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 181, 250, 260, 325, 362, 500, 625, 650, 673, 724, 905, 1250, 1300, 1346, 1625, 1810, 2353, 2500, 2692, 3125, 3250, 3365, 3620, 4525, 4706, 6250, 6500, 6730, 8125, 8749, 9050, 9412, 11765, 12500, 13460, 16250, 16825, 17498, 18100, 22625, 23530, 32500, 33650, 34996, 40625, 43745, 45250, 47060, 58825, 67300, 81250, 84125, 87490, 90500, 113125, 117650, 121813, 162500, 168250, 174980, 218725, 226250, 235300, 243626, 294125, 336500, 420625, 437450, 452500, 487252, 565625, 588250, 609065, 841250, 874900, 1093625, 1131250, 1176500, 1218130, 1470625, 1583569, 1682500, 2103125, 2187250, 2262500, 2436260, 2941250, 3045325, 3167138, 4206250, 4374500, 5468125, 5882500, 6090650, 6334276, 7353125, 7917845, 8412500, 10936250, 12181300, 14706250, 15226625, 15835690, 21872500, 27340625, 29412500, 30453250, 31671380, 39589225, 54681250, 60906500, 76133125, 79178450, 109362500, 152266250, 158356900, 197946125, 304532500, 380665625, 395892250, 761331250, 791784500, 989730625, 1522662500, 1979461250, 3958922500, 4948653125, 9897306250, 19794612500]

約数ペア:

[(1, 19794612500), (2, 9897306250), (4, 4948653125), (5, 3958922500), (10, 1979461250), (13, 1522662500), (20, 989730625), (25, 791784500), (26, 761331250), (50, 395892250), (52, 380665625), (65, 304532500), (100, 197946125), (125, 158356900), (130, 152266250), (181, 109362500), (250, 79178450), (260, 76133125), (325, 60906500), (362, 54681250), (500, 39589225), (625, 31671380), (650, 30453250), (673, 29412500), (724, 27340625), (905, 21872500), (1250, 15835690), (1300, 15226625), (1346, 14706250), (1625, 12181300), (1810, 10936250), (2353, 8412500), (2500, 7917845), (2692, 7353125), (3125, 6334276), (3250, 6090650), (3365, 5882500), (3620, 5468125), (4525, 4374500), (4706, 4206250), (6250, 3167138), (6500, 3045325), (6730, 2941250), (8125, 2436260), (8749, 2262500), (9050, 2187250), (9412, 2103125), (11765, 1682500), (12500, 1583569), (13460, 1470625), (16250, 1218130), (16825, 1176500), (17498, 1131250), (18100, 1093625), (22625, 874900), (23530, 841250), (32500, 609065), (33650, 588250), (34996, 565625), (40625, 487252), (43745, 452500), (45250, 437450), (47060, 420625), (58825, 336500), (67300, 294125), (81250, 243626), (84125, 235300), (87490, 226250), (90500, 218725), (113125, 174980), (117650, 168250), (121813, 162500)]