77491960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:441

約数の個数: 128

約数和(自身を含む): 218736000

約数和(自身を除く): 141244040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 61, 65, 70, 91, 104, 122, 130, 140, 182, 244, 260, 280, 305, 349, 364, 427, 455, 488, 520, 610, 698, 728, 793, 854, 910, 1220, 1396, 1586, 1708, 1745, 1820, 2135, 2440, 2443, 2792, 3172, 3416, 3490, 3640, 3965, 4270, 4537, 4886, 5551, 6344, 6980, 7930, 8540, 9074, 9772, 11102, 12215, 13960, 15860, 17080, 18148, 19544, 21289, 22204, 22685, 24430, 27755, 31720, 31759, 36296, 42578, 44408, 45370, 48860, 55510, 63518, 85156, 90740, 97720, 106445, 111020, 127036, 149023, 158795, 170312, 181480, 212890, 222040, 254072, 276757, 298046, 317590, 425780, 553514, 596092, 635180, 745115, 851560, 1107028, 1192184, 1270360, 1383785, 1490230, 1937299, 2214056, 2767570, 2980460, 3874598, 5535140, 5960920, 7749196, 9686495, 11070280, 15498392, 19372990, 38745980, 77491960]

約数ペア:

[(1, 77491960), (2, 38745980), (4, 19372990), (5, 15498392), (7, 11070280), (8, 9686495), (10, 7749196), (13, 5960920), (14, 5535140), (20, 3874598), (26, 2980460), (28, 2767570), (35, 2214056), (40, 1937299), (52, 1490230), (56, 1383785), (61, 1270360), (65, 1192184), (70, 1107028), (91, 851560), (104, 745115), (122, 635180), (130, 596092), (140, 553514), (182, 425780), (244, 317590), (260, 298046), (280, 276757), (305, 254072), (349, 222040), (364, 212890), (427, 181480), (455, 170312), (488, 158795), (520, 149023), (610, 127036), (698, 111020), (728, 106445), (793, 97720), (854, 90740), (910, 85156), (1220, 63518), (1396, 55510), (1586, 48860), (1708, 45370), (1745, 44408), (1820, 42578), (2135, 36296), (2440, 31759), (2443, 31720), (2792, 27755), (3172, 24430), (3416, 22685), (3490, 22204), (3640, 21289), (3965, 19544), (4270, 18148), (4537, 17080), (4886, 15860), (5551, 13960), (6344, 12215), (6980, 11102), (7930, 9772), (8540, 9074)]