291264740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 725496912

約数和(自身を除く): 434232172

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 37, 52, 65, 68, 74, 85, 130, 137, 148, 169, 170, 185, 221, 260, 274, 338, 340, 370, 442, 481, 548, 629, 676, 685, 740, 845, 884, 962, 1105, 1258, 1370, 1690, 1781, 1924, 2210, 2329, 2405, 2516, 2740, 2873, 3145, 3380, 3562, 4420, 4658, 4810, 5069, 5746, 6253, 6290, 7124, 8177, 8905, 9316, 9620, 10138, 11492, 11645, 12506, 12580, 14365, 16354, 17810, 20276, 23153, 23290, 25012, 25345, 28730, 30277, 31265, 32708, 35620, 40885, 46306, 46580, 50690, 57460, 60554, 62530, 65897, 81770, 86173, 92612, 101380, 106301, 115765, 121108, 125060, 131794, 151385, 163540, 172346, 212602, 231530, 263588, 302770, 329485, 344692, 393601, 425204, 430865, 463060, 531505, 605540, 658970, 787202, 856661, 861730, 1063010, 1120249, 1317940, 1574404, 1713322, 1723460, 1968005, 2126020, 2240498, 3426644, 3936010, 4283305, 4480996, 5601245, 7872020, 8566610, 11202490, 14563237, 17133220, 22404980, 29126474, 58252948, 72816185, 145632370, 291264740]

約数ペア:

[(1, 291264740), (2, 145632370), (4, 72816185), (5, 58252948), (10, 29126474), (13, 22404980), (17, 17133220), (20, 14563237), (26, 11202490), (34, 8566610), (37, 7872020), (52, 5601245), (65, 4480996), (68, 4283305), (74, 3936010), (85, 3426644), (130, 2240498), (137, 2126020), (148, 1968005), (169, 1723460), (170, 1713322), (185, 1574404), (221, 1317940), (260, 1120249), (274, 1063010), (338, 861730), (340, 856661), (370, 787202), (442, 658970), (481, 605540), (548, 531505), (629, 463060), (676, 430865), (685, 425204), (740, 393601), (845, 344692), (884, 329485), (962, 302770), (1105, 263588), (1258, 231530), (1370, 212602), (1690, 172346), (1781, 163540), (1924, 151385), (2210, 131794), (2329, 125060), (2405, 121108), (2516, 115765), (2740, 106301), (2873, 101380), (3145, 92612), (3380, 86173), (3562, 81770), (4420, 65897), (4658, 62530), (4810, 60554), (5069, 57460), (5746, 50690), (6253, 46580), (6290, 46306), (7124, 40885), (8177, 35620), (8905, 32708), (9316, 31265), (9620, 30277), (10138, 28730), (11492, 25345), (11645, 25012), (12506, 23290), (12580, 23153), (14365, 20276), (16354, 17810)]