138515440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:231

約数の個数: 160

約数和(自身を含む): 388546560

約数和(自身を除く): 250031120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 79, 80, 101, 112, 124, 140, 155, 158, 202, 217, 248, 280, 310, 316, 395, 404, 434, 496, 505, 553, 560, 620, 632, 707, 790, 808, 868, 1010, 1085, 1106, 1240, 1264, 1414, 1580, 1616, 1736, 2020, 2170, 2212, 2449, 2480, 2765, 2828, 3131, 3160, 3472, 3535, 4040, 4340, 4424, 4898, 5530, 5656, 6262, 6320, 7070, 7979, 8080, 8680, 8848, 9796, 11060, 11312, 12245, 12524, 14140, 15655, 15958, 17143, 17360, 19592, 21917, 22120, 24490, 25048, 28280, 31310, 31916, 34286, 39184, 39895, 43834, 44240, 48980, 50096, 55853, 56560, 62620, 63832, 68572, 79790, 85715, 87668, 97960, 109585, 111706, 125240, 127664, 137144, 159580, 171430, 175336, 195920, 219170, 223412, 247349, 250480, 274288, 279265, 319160, 342860, 350672, 438340, 446824, 494698, 558530, 638320, 685720, 876680, 893648, 989396, 1117060, 1236745, 1371440, 1731443, 1753360, 1978792, 2234120, 2473490, 3462886, 3957584, 4468240, 4946980, 6925772, 8657215, 9893960, 13851544, 17314430, 19787920, 27703088, 34628860, 69257720, 138515440]

約数ペア:

[(1, 138515440), (2, 69257720), (4, 34628860), (5, 27703088), (7, 19787920), (8, 17314430), (10, 13851544), (14, 9893960), (16, 8657215), (20, 6925772), (28, 4946980), (31, 4468240), (35, 3957584), (40, 3462886), (56, 2473490), (62, 2234120), (70, 1978792), (79, 1753360), (80, 1731443), (101, 1371440), (112, 1236745), (124, 1117060), (140, 989396), (155, 893648), (158, 876680), (202, 685720), (217, 638320), (248, 558530), (280, 494698), (310, 446824), (316, 438340), (395, 350672), (404, 342860), (434, 319160), (496, 279265), (505, 274288), (553, 250480), (560, 247349), (620, 223412), (632, 219170), (707, 195920), (790, 175336), (808, 171430), (868, 159580), (1010, 137144), (1085, 127664), (1106, 125240), (1240, 111706), (1264, 109585), (1414, 97960), (1580, 87668), (1616, 85715), (1736, 79790), (2020, 68572), (2170, 63832), (2212, 62620), (2449, 56560), (2480, 55853), (2765, 50096), (2828, 48980), (3131, 44240), (3160, 43834), (3472, 39895), (3535, 39184), (4040, 34286), (4340, 31916), (4424, 31310), (4898, 28280), (5530, 25048), (5656, 24490), (6262, 22120), (6320, 21917), (7070, 19592), (7979, 17360), (8080, 17143), (8680, 15958), (8848, 15655), (9796, 14140), (11060, 12524), (11312, 12245)]