1621841640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{190357}}^1$

素因数の和:190442

約数の個数: 64

約数和(自身を含む): 4934079360

約数和(自身を除く): 3312237720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2840, 4260, 8520, 190357, 380714, 571071, 761428, 951785, 1142142, 1522856, 1903570, 2284284, 2855355, 3807140, 4568568, 5710710, 7614280, 11421420, 13515347, 22842840, 27030694, 40546041, 54061388, 67576735, 81092082, 108122776, 135153470, 162184164, 202730205, 270306940, 324368328, 405460410, 540613880, 810920820, 1621841640]

約数ペア:

[(1, 1621841640), (2, 810920820), (3, 540613880), (4, 405460410), (5, 324368328), (6, 270306940), (8, 202730205), (10, 162184164), (12, 135153470), (15, 108122776), (20, 81092082), (24, 67576735), (30, 54061388), (40, 40546041), (60, 27030694), (71, 22842840), (120, 13515347), (142, 11421420), (213, 7614280), (284, 5710710), (355, 4568568), (426, 3807140), (568, 2855355), (710, 2284284), (852, 1903570), (1065, 1522856), (1420, 1142142), (1704, 951785), (2130, 761428), (2840, 571071), (4260, 380714), (8520, 190357)]