206857420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{619}}^1$

素因数の和:684

約数の個数: 144

約数和(自身を含む): 569963520

約数和(自身を除く): 363106100

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 49, 55, 62, 70, 77, 98, 110, 124, 140, 154, 155, 196, 217, 220, 245, 308, 310, 341, 385, 434, 490, 539, 619, 620, 682, 770, 868, 980, 1078, 1085, 1238, 1364, 1519, 1540, 1705, 2156, 2170, 2387, 2476, 2695, 3038, 3095, 3410, 4333, 4340, 4774, 5390, 6076, 6190, 6809, 6820, 7595, 8666, 9548, 10780, 11935, 12380, 13618, 15190, 16709, 17332, 19189, 21665, 23870, 27236, 30331, 30380, 33418, 34045, 38378, 43330, 47663, 47740, 60662, 66836, 68090, 76756, 83545, 86660, 95326, 95945, 121324, 134323, 136180, 151655, 167090, 190652, 191890, 211079, 238315, 268646, 303310, 333641, 334180, 383780, 422158, 476630, 537292, 606620, 667282, 671615, 844316, 940261, 953260, 1055395, 1334564, 1343230, 1477553, 1668205, 1880522, 2110790, 2686460, 2955106, 3336410, 3761044, 4221580, 4701305, 5910212, 6672820, 7387765, 9402610, 10342871, 14775530, 18805220, 20685742, 29551060, 41371484, 51714355, 103428710, 206857420]

約数ペア:

[(1, 206857420), (2, 103428710), (4, 51714355), (5, 41371484), (7, 29551060), (10, 20685742), (11, 18805220), (14, 14775530), (20, 10342871), (22, 9402610), (28, 7387765), (31, 6672820), (35, 5910212), (44, 4701305), (49, 4221580), (55, 3761044), (62, 3336410), (70, 2955106), (77, 2686460), (98, 2110790), (110, 1880522), (124, 1668205), (140, 1477553), (154, 1343230), (155, 1334564), (196, 1055395), (217, 953260), (220, 940261), (245, 844316), (308, 671615), (310, 667282), (341, 606620), (385, 537292), (434, 476630), (490, 422158), (539, 383780), (619, 334180), (620, 333641), (682, 303310), (770, 268646), (868, 238315), (980, 211079), (1078, 191890), (1085, 190652), (1238, 167090), (1364, 151655), (1519, 136180), (1540, 134323), (1705, 121324), (2156, 95945), (2170, 95326), (2387, 86660), (2476, 83545), (2695, 76756), (3038, 68090), (3095, 66836), (3410, 60662), (4333, 47740), (4340, 47663), (4774, 43330), (5390, 38378), (6076, 34045), (6190, 33418), (6809, 30380), (6820, 30331), (7595, 27236), (8666, 23870), (9548, 21665), (10780, 19189), (11935, 17332), (12380, 16709), (13618, 15190)]