821357940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{2707}}^1$

素因数の和:3121

約数の個数: 96

約数和(自身を含む): 2483994240

約数和(自身を除く): 1662636300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 389, 390, 778, 780, 1167, 1556, 1945, 2334, 2707, 3890, 4668, 5057, 5414, 5835, 7780, 8121, 10114, 10828, 11670, 13535, 15171, 16242, 20228, 23340, 25285, 27070, 30342, 32484, 35191, 40605, 50570, 54140, 60684, 70382, 75855, 81210, 101140, 105573, 140764, 151710, 162420, 175955, 211146, 303420, 351910, 422292, 527865, 703820, 1053023, 1055730, 2106046, 2111460, 3159069, 4212092, 5265115, 6318138, 10530230, 12636276, 13689299, 15795345, 21060460, 27378598, 31590690, 41067897, 54757196, 63181380, 68446495, 82135794, 136892990, 164271588, 205339485, 273785980, 410678970, 821357940]

約数ペア:

[(1, 821357940), (2, 410678970), (3, 273785980), (4, 205339485), (5, 164271588), (6, 136892990), (10, 82135794), (12, 68446495), (13, 63181380), (15, 54757196), (20, 41067897), (26, 31590690), (30, 27378598), (39, 21060460), (52, 15795345), (60, 13689299), (65, 12636276), (78, 10530230), (130, 6318138), (156, 5265115), (195, 4212092), (260, 3159069), (389, 2111460), (390, 2106046), (778, 1055730), (780, 1053023), (1167, 703820), (1556, 527865), (1945, 422292), (2334, 351910), (2707, 303420), (3890, 211146), (4668, 175955), (5057, 162420), (5414, 151710), (5835, 140764), (7780, 105573), (8121, 101140), (10114, 81210), (10828, 75855), (11670, 70382), (13535, 60684), (15171, 54140), (16242, 50570), (20228, 40605), (23340, 35191), (25285, 32484), (27070, 30342)]