19957080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1163}}^1$

素因数の和:1201

約数の個数: 128

約数和(自身を含む): 70398720

約数和(自身を除く): 50441640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 13, 15, 20, 22, 24, 26, 30, 33, 39, 40, 44, 52, 55, 60, 65, 66, 78, 88, 104, 110, 120, 130, 132, 143, 156, 165, 195, 220, 260, 264, 286, 312, 330, 390, 429, 440, 520, 572, 660, 715, 780, 858, 1144, 1163, 1320, 1430, 1560, 1716, 2145, 2326, 2860, 3432, 3489, 4290, 4652, 5720, 5815, 6978, 8580, 9304, 11630, 12793, 13956, 15119, 17160, 17445, 23260, 25586, 27912, 30238, 34890, 38379, 45357, 46520, 51172, 60476, 63965, 69780, 75595, 76758, 90714, 102344, 120952, 127930, 139560, 151190, 153516, 166309, 181428, 191895, 226785, 255860, 302380, 307032, 332618, 362856, 383790, 453570, 498927, 511720, 604760, 665236, 767580, 831545, 907140, 997854, 1330472, 1535160, 1663090, 1814280, 1995708, 2494635, 3326180, 3991416, 4989270, 6652360, 9978540, 19957080]

約数ペア:

[(1, 19957080), (2, 9978540), (3, 6652360), (4, 4989270), (5, 3991416), (6, 3326180), (8, 2494635), (10, 1995708), (11, 1814280), (12, 1663090), (13, 1535160), (15, 1330472), (20, 997854), (22, 907140), (24, 831545), (26, 767580), (30, 665236), (33, 604760), (39, 511720), (40, 498927), (44, 453570), (52, 383790), (55, 362856), (60, 332618), (65, 307032), (66, 302380), (78, 255860), (88, 226785), (104, 191895), (110, 181428), (120, 166309), (130, 153516), (132, 151190), (143, 139560), (156, 127930), (165, 120952), (195, 102344), (220, 90714), (260, 76758), (264, 75595), (286, 69780), (312, 63965), (330, 60476), (390, 51172), (429, 46520), (440, 45357), (520, 38379), (572, 34890), (660, 30238), (715, 27912), (780, 25586), (858, 23260), (1144, 17445), (1163, 17160), (1320, 15119), (1430, 13956), (1560, 12793), (1716, 11630), (2145, 9304), (2326, 8580), (2860, 6978), (3432, 5815), (3489, 5720), (4290, 4652)]