209903640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2141}}^1$

素因数の和:2217

約数の個数: 128

約数和(自身を含む): 678585600

約数和(自身を除く): 468681960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 43, 57, 60, 76, 86, 95, 114, 120, 129, 152, 172, 190, 215, 228, 258, 285, 344, 380, 430, 456, 516, 570, 645, 760, 817, 860, 1032, 1140, 1290, 1634, 1720, 2141, 2280, 2451, 2580, 3268, 4085, 4282, 4902, 5160, 6423, 6536, 8170, 8564, 9804, 10705, 12255, 12846, 16340, 17128, 19608, 21410, 24510, 25692, 32115, 32680, 40679, 42820, 49020, 51384, 64230, 81358, 85640, 92063, 98040, 122037, 128460, 162716, 184126, 203395, 244074, 256920, 276189, 325432, 368252, 406790, 460315, 488148, 552378, 610185, 736504, 813580, 920630, 976296, 1104756, 1220370, 1380945, 1627160, 1749197, 1841260, 2209512, 2440740, 2761890, 3498394, 3682520, 4881480, 5247591, 5523780, 6996788, 8745985, 10495182, 11047560, 13993576, 17491970, 20990364, 26237955, 34983940, 41980728, 52475910, 69967880, 104951820, 209903640]

約数ペア:

[(1, 209903640), (2, 104951820), (3, 69967880), (4, 52475910), (5, 41980728), (6, 34983940), (8, 26237955), (10, 20990364), (12, 17491970), (15, 13993576), (19, 11047560), (20, 10495182), (24, 8745985), (30, 6996788), (38, 5523780), (40, 5247591), (43, 4881480), (57, 3682520), (60, 3498394), (76, 2761890), (86, 2440740), (95, 2209512), (114, 1841260), (120, 1749197), (129, 1627160), (152, 1380945), (172, 1220370), (190, 1104756), (215, 976296), (228, 920630), (258, 813580), (285, 736504), (344, 610185), (380, 552378), (430, 488148), (456, 460315), (516, 406790), (570, 368252), (645, 325432), (760, 276189), (817, 256920), (860, 244074), (1032, 203395), (1140, 184126), (1290, 162716), (1634, 128460), (1720, 122037), (2141, 98040), (2280, 92063), (2451, 85640), (2580, 81358), (3268, 64230), (4085, 51384), (4282, 49020), (4902, 42820), (5160, 40679), (6423, 32680), (6536, 32115), (8170, 25692), (8564, 24510), (9804, 21410), (10705, 19608), (12255, 17128), (12846, 16340)]