28416240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:727

約数の個数: 120

約数和(自身を含む): 97145568

約数和(自身を除く): 68729328

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 61, 72, 80, 90, 120, 122, 144, 180, 183, 240, 244, 305, 360, 366, 488, 549, 610, 647, 720, 732, 915, 976, 1098, 1220, 1294, 1464, 1830, 1941, 2196, 2440, 2588, 2745, 2928, 3235, 3660, 3882, 4392, 4880, 5176, 5490, 5823, 6470, 7320, 7764, 8784, 9705, 10352, 10980, 11646, 12940, 14640, 15528, 19410, 21960, 23292, 25880, 29115, 31056, 38820, 39467, 43920, 46584, 51760, 58230, 77640, 78934, 93168, 116460, 118401, 155280, 157868, 197335, 232920, 236802, 315736, 355203, 394670, 465840, 473604, 592005, 631472, 710406, 789340, 947208, 1184010, 1420812, 1578680, 1776015, 1894416, 2368020, 2841624, 3157360, 3552030, 4736040, 5683248, 7104060, 9472080, 14208120, 28416240]

約数ペア:

[(1, 28416240), (2, 14208120), (3, 9472080), (4, 7104060), (5, 5683248), (6, 4736040), (8, 3552030), (9, 3157360), (10, 2841624), (12, 2368020), (15, 1894416), (16, 1776015), (18, 1578680), (20, 1420812), (24, 1184010), (30, 947208), (36, 789340), (40, 710406), (45, 631472), (48, 592005), (60, 473604), (61, 465840), (72, 394670), (80, 355203), (90, 315736), (120, 236802), (122, 232920), (144, 197335), (180, 157868), (183, 155280), (240, 118401), (244, 116460), (305, 93168), (360, 78934), (366, 77640), (488, 58230), (549, 51760), (610, 46584), (647, 43920), (720, 39467), (732, 38820), (915, 31056), (976, 29115), (1098, 25880), (1220, 23292), (1294, 21960), (1464, 19410), (1830, 15528), (1941, 14640), (2196, 12940), (2440, 11646), (2588, 10980), (2745, 10352), (2928, 9705), (3235, 8784), (3660, 7764), (3882, 7320), (4392, 6470), (4880, 5823), (5176, 5490)]