42009040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 120

約数和(自身を含む): 109635840

約数和(自身を除く): 67626800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 68, 79, 80, 85, 92, 115, 136, 158, 170, 184, 230, 272, 289, 316, 340, 368, 391, 395, 460, 578, 632, 680, 782, 790, 920, 1156, 1264, 1343, 1360, 1445, 1564, 1580, 1817, 1840, 1955, 2312, 2686, 2890, 3128, 3160, 3634, 3910, 4624, 5372, 5780, 6256, 6320, 6647, 6715, 7268, 7820, 9085, 10744, 11560, 13294, 13430, 14536, 15640, 18170, 21488, 22831, 23120, 26588, 26860, 29072, 30889, 31280, 33235, 36340, 45662, 53176, 53720, 61778, 66470, 72680, 91324, 106352, 107440, 114155, 123556, 132940, 145360, 154445, 182648, 228310, 247112, 265880, 308890, 365296, 456620, 494224, 525113, 531760, 617780, 913240, 1050226, 1235560, 1826480, 2100452, 2471120, 2625565, 4200904, 5251130, 8401808, 10502260, 21004520, 42009040]

約数ペア:

[(1, 42009040), (2, 21004520), (4, 10502260), (5, 8401808), (8, 5251130), (10, 4200904), (16, 2625565), (17, 2471120), (20, 2100452), (23, 1826480), (34, 1235560), (40, 1050226), (46, 913240), (68, 617780), (79, 531760), (80, 525113), (85, 494224), (92, 456620), (115, 365296), (136, 308890), (158, 265880), (170, 247112), (184, 228310), (230, 182648), (272, 154445), (289, 145360), (316, 132940), (340, 123556), (368, 114155), (391, 107440), (395, 106352), (460, 91324), (578, 72680), (632, 66470), (680, 61778), (782, 53720), (790, 53176), (920, 45662), (1156, 36340), (1264, 33235), (1343, 31280), (1360, 30889), (1445, 29072), (1564, 26860), (1580, 26588), (1817, 23120), (1840, 22831), (1955, 21488), (2312, 18170), (2686, 15640), (2890, 14536), (3128, 13430), (3160, 13294), (3634, 11560), (3910, 10744), (4624, 9085), (5372, 7820), (5780, 7268), (6256, 6715), (6320, 6647)]