645908040

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31477}}^1$

素因数の和:31516

約数の個数: 128

約数和(自身を含む): 2266416000

約数和(自身を除く): 1620507960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1710, 2052, 2280, 2565, 3420, 4104, 5130, 6840, 10260, 20520, 31477, 62954, 94431, 125908, 157385, 188862, 251816, 283293, 314770, 377724, 472155, 566586, 598063, 629540, 755448, 849879, 944310, 1133172, 1196126, 1259080, 1416465, 1699758, 1794189, 1888620, 2266344, 2392252, 2832930, 2990315, 3399516, 3588378, 3777240, 4249395, 4784504, 5382567, 5665860, 5980630, 6799032, 7176756, 8498790, 8970945, 10765134, 11331720, 11961260, 14353512, 16147701, 16997580, 17941890, 21530268, 23922520, 26912835, 32295402, 33995160, 35883780, 43060536, 53825670, 64590804, 71767560, 80738505, 107651340, 129181608, 161477010, 215302680, 322954020, 645908040]

約数ペア:

[(1, 645908040), (2, 322954020), (3, 215302680), (4, 161477010), (5, 129181608), (6, 107651340), (8, 80738505), (9, 71767560), (10, 64590804), (12, 53825670), (15, 43060536), (18, 35883780), (19, 33995160), (20, 32295402), (24, 26912835), (27, 23922520), (30, 21530268), (36, 17941890), (38, 16997580), (40, 16147701), (45, 14353512), (54, 11961260), (57, 11331720), (60, 10765134), (72, 8970945), (76, 8498790), (90, 7176756), (95, 6799032), (108, 5980630), (114, 5665860), (120, 5382567), (135, 4784504), (152, 4249395), (171, 3777240), (180, 3588378), (190, 3399516), (216, 2990315), (228, 2832930), (270, 2392252), (285, 2266344), (342, 1888620), (360, 1794189), (380, 1699758), (456, 1416465), (513, 1259080), (540, 1196126), (570, 1133172), (684, 944310), (760, 849879), (855, 755448), (1026, 629540), (1080, 598063), (1140, 566586), (1368, 472155), (1710, 377724), (2052, 314770), (2280, 283293), (2565, 251816), (3420, 188862), (4104, 157385), (5130, 125908), (6840, 94431), (10260, 62954), (20520, 31477)]