18951968420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{396983}}^1$

素因数の和:397041

約数の個数: 96

約数和(自身を含む): 51220463616

約数和(自身を除く): 32268495196

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 55, 62, 70, 77, 110, 124, 140, 154, 155, 217, 220, 308, 310, 341, 385, 434, 620, 682, 770, 868, 1085, 1364, 1540, 1705, 2170, 2387, 3410, 4340, 4774, 6820, 9548, 11935, 23870, 47740, 396983, 793966, 1587932, 1984915, 2778881, 3969830, 4366813, 5557762, 7939660, 8733626, 11115524, 12306473, 13894405, 17467252, 21834065, 24612946, 27788810, 30567691, 43668130, 49225892, 55577620, 61135382, 61532365, 86145311, 87336260, 122270764, 123064730, 135371203, 152838455, 172290622, 246129460, 270742406, 305676910, 344581244, 430726555, 541484812, 611353820, 676856015, 861453110, 947598421, 1353712030, 1722906220, 1895196842, 2707424060, 3790393684, 4737992105, 9475984210, 18951968420]

約数ペア:

[(1, 18951968420), (2, 9475984210), (4, 4737992105), (5, 3790393684), (7, 2707424060), (10, 1895196842), (11, 1722906220), (14, 1353712030), (20, 947598421), (22, 861453110), (28, 676856015), (31, 611353820), (35, 541484812), (44, 430726555), (55, 344581244), (62, 305676910), (70, 270742406), (77, 246129460), (110, 172290622), (124, 152838455), (140, 135371203), (154, 123064730), (155, 122270764), (217, 87336260), (220, 86145311), (308, 61532365), (310, 61135382), (341, 55577620), (385, 49225892), (434, 43668130), (620, 30567691), (682, 27788810), (770, 24612946), (868, 21834065), (1085, 17467252), (1364, 13894405), (1540, 12306473), (1705, 11115524), (2170, 8733626), (2387, 7939660), (3410, 5557762), (4340, 4366813), (4774, 3969830), (6820, 2778881), (9548, 1984915), (11935, 1587932), (23870, 793966), (47740, 396983)]