320415615

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:202

約数の個数: 128

約数和(自身を含む): 647458560

約数和(自身を除く): 327042945

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 41, 45, 61, 65, 73, 117, 123, 135, 183, 195, 205, 219, 305, 351, 365, 369, 533, 549, 585, 615, 657, 793, 915, 949, 1095, 1107, 1599, 1647, 1755, 1845, 1971, 2379, 2501, 2665, 2745, 2847, 2993, 3285, 3965, 4453, 4745, 4797, 5535, 7137, 7503, 7995, 8235, 8541, 8979, 9855, 11895, 12505, 13359, 14235, 14391, 14965, 21411, 22265, 22509, 23985, 25623, 26937, 32513, 35685, 37515, 38909, 40077, 42705, 44895, 57889, 66795, 67527, 71955, 80811, 97539, 107055, 112545, 116727, 120231, 128115, 134685, 162565, 173667, 182573, 194545, 200385, 289445, 292617, 337635, 350181, 404055, 487695, 521001, 547719, 583635, 601155, 868335, 877851, 912865, 1050543, 1463085, 1563003, 1643157, 1750905, 2373449, 2605005, 2738595, 4389255, 4929471, 5252715, 7120347, 7815015, 8215785, 11867245, 21361041, 24647355, 35601735, 64083123, 106805205, 320415615]

約数ペア:

[(1, 320415615), (3, 106805205), (5, 64083123), (9, 35601735), (13, 24647355), (15, 21361041), (27, 11867245), (39, 8215785), (41, 7815015), (45, 7120347), (61, 5252715), (65, 4929471), (73, 4389255), (117, 2738595), (123, 2605005), (135, 2373449), (183, 1750905), (195, 1643157), (205, 1563003), (219, 1463085), (305, 1050543), (351, 912865), (365, 877851), (369, 868335), (533, 601155), (549, 583635), (585, 547719), (615, 521001), (657, 487695), (793, 404055), (915, 350181), (949, 337635), (1095, 292617), (1107, 289445), (1599, 200385), (1647, 194545), (1755, 182573), (1845, 173667), (1971, 162565), (2379, 134685), (2501, 128115), (2665, 120231), (2745, 116727), (2847, 112545), (2993, 107055), (3285, 97539), (3965, 80811), (4453, 71955), (4745, 67527), (4797, 66795), (5535, 57889), (7137, 44895), (7503, 42705), (7995, 40077), (8235, 38909), (8541, 37515), (8979, 35685), (9855, 32513), (11895, 26937), (12505, 25623), (13359, 23985), (14235, 22509), (14391, 22265), (14965, 21411)]