72557770

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 143700480

約数和(自身を除く): 71142710

約数列:

[1, 2, 5, 10, 19, 38, 43, 83, 86, 95, 107, 166, 190, 214, 215, 415, 430, 535, 817, 830, 1070, 1577, 1634, 2033, 3154, 3569, 4066, 4085, 4601, 7138, 7885, 8170, 8881, 9202, 10165, 15770, 17762, 17845, 20330, 23005, 35690, 44405, 46010, 67811, 87419, 88810, 135622, 168739, 174838, 337478, 339055, 381883, 437095, 678110, 763766, 843695, 874190, 1687390, 1909415, 3818830, 7255777, 14511554, 36278885, 72557770]

約数ペア:

[(1, 72557770), (2, 36278885), (5, 14511554), (10, 7255777), (19, 3818830), (38, 1909415), (43, 1687390), (83, 874190), (86, 843695), (95, 763766), (107, 678110), (166, 437095), (190, 381883), (214, 339055), (215, 337478), (415, 174838), (430, 168739), (535, 135622), (817, 88810), (830, 87419), (1070, 67811), (1577, 46010), (1634, 44405), (2033, 35690), (3154, 23005), (3569, 20330), (4066, 17845), (4085, 17762), (4601, 15770), (7138, 10165), (7885, 9202), (8170, 8881)]