644397390

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{26227}}^1$

素因数の和:26263

約数の個数: 128

約数和(自身を含む): 2115025920

約数和(自身を除く): 1470628530

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 27, 30, 35, 39, 42, 45, 54, 63, 65, 70, 78, 90, 91, 105, 117, 126, 130, 135, 182, 189, 195, 210, 234, 270, 273, 315, 351, 378, 390, 455, 546, 585, 630, 702, 819, 910, 945, 1170, 1365, 1638, 1755, 1890, 2457, 2730, 3510, 4095, 4914, 8190, 12285, 24570, 26227, 52454, 78681, 131135, 157362, 183589, 236043, 262270, 340951, 367178, 393405, 472086, 550767, 681902, 708129, 786810, 917945, 1022853, 1101534, 1180215, 1416258, 1652301, 1704755, 1835890, 2045706, 2360430, 2386657, 2753835, 3068559, 3304602, 3409510, 3540645, 4773314, 4956903, 5114265, 5507670, 6137118, 7081290, 7159971, 8261505, 9205677, 9913806, 10228530, 11933285, 14319942, 15342795, 16523010, 18411354, 21479913, 23866570, 24784515, 30685590, 35799855, 42959826, 46028385, 49569030, 64439739, 71599710, 92056770, 107399565, 128879478, 214799130, 322198695, 644397390]

約数ペア:

[(1, 644397390), (2, 322198695), (3, 214799130), (5, 128879478), (6, 107399565), (7, 92056770), (9, 71599710), (10, 64439739), (13, 49569030), (14, 46028385), (15, 42959826), (18, 35799855), (21, 30685590), (26, 24784515), (27, 23866570), (30, 21479913), (35, 18411354), (39, 16523010), (42, 15342795), (45, 14319942), (54, 11933285), (63, 10228530), (65, 9913806), (70, 9205677), (78, 8261505), (90, 7159971), (91, 7081290), (105, 6137118), (117, 5507670), (126, 5114265), (130, 4956903), (135, 4773314), (182, 3540645), (189, 3409510), (195, 3304602), (210, 3068559), (234, 2753835), (270, 2386657), (273, 2360430), (315, 2045706), (351, 1835890), (378, 1704755), (390, 1652301), (455, 1416258), (546, 1180215), (585, 1101534), (630, 1022853), (702, 917945), (819, 786810), (910, 708129), (945, 681902), (1170, 550767), (1365, 472086), (1638, 393405), (1755, 367178), (1890, 340951), (2457, 262270), (2730, 236043), (3510, 183589), (4095, 157362), (4914, 131135), (8190, 78681), (12285, 52454), (24570, 26227)]