231511720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{1543}}^1$

素因数の和:1607

約数の個数: 96

約数和(自身を含む): 591413760

約数和(自身を除く): 359902040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 121, 124, 155, 220, 242, 248, 310, 341, 440, 484, 605, 620, 682, 968, 1210, 1240, 1364, 1543, 1705, 2420, 2728, 3086, 3410, 3751, 4840, 6172, 6820, 7502, 7715, 12344, 13640, 15004, 15430, 16973, 18755, 30008, 30860, 33946, 37510, 47833, 61720, 67892, 75020, 84865, 95666, 135784, 150040, 169730, 186703, 191332, 239165, 339460, 373406, 382664, 478330, 526163, 678920, 746812, 933515, 956660, 1052326, 1493624, 1867030, 1913320, 2104652, 2630815, 3734060, 4209304, 5261630, 5787793, 7468120, 10523260, 11575586, 21046520, 23151172, 28938965, 46302344, 57877930, 115755860, 231511720]

約数ペア:

[(1, 231511720), (2, 115755860), (4, 57877930), (5, 46302344), (8, 28938965), (10, 23151172), (11, 21046520), (20, 11575586), (22, 10523260), (31, 7468120), (40, 5787793), (44, 5261630), (55, 4209304), (62, 3734060), (88, 2630815), (110, 2104652), (121, 1913320), (124, 1867030), (155, 1493624), (220, 1052326), (242, 956660), (248, 933515), (310, 746812), (341, 678920), (440, 526163), (484, 478330), (605, 382664), (620, 373406), (682, 339460), (968, 239165), (1210, 191332), (1240, 186703), (1364, 169730), (1543, 150040), (1705, 135784), (2420, 95666), (2728, 84865), (3086, 75020), (3410, 67892), (3751, 61720), (4840, 47833), (6172, 37510), (6820, 33946), (7502, 30860), (7715, 30008), (12344, 18755), (13640, 16973), (15004, 15430)]