28244640

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{163}}^1$

素因数の和:219

約数の個数: 144

約数和(自身を含む): 94475808

約数和(自身を除く): 66231168

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 76, 80, 95, 96, 114, 120, 152, 160, 163, 190, 228, 240, 285, 304, 326, 361, 380, 456, 480, 489, 570, 608, 652, 722, 760, 815, 912, 978, 1083, 1140, 1304, 1444, 1520, 1630, 1805, 1824, 1956, 2166, 2280, 2445, 2608, 2888, 3040, 3097, 3260, 3610, 3912, 4332, 4560, 4890, 5216, 5415, 5776, 6194, 6520, 7220, 7824, 8664, 9120, 9291, 9780, 10830, 11552, 12388, 13040, 14440, 15485, 15648, 17328, 18582, 19560, 21660, 24776, 26080, 28880, 30970, 34656, 37164, 39120, 43320, 46455, 49552, 57760, 58843, 61940, 74328, 78240, 86640, 92910, 99104, 117686, 123880, 148656, 173280, 176529, 185820, 235372, 247760, 294215, 297312, 353058, 371640, 470744, 495520, 588430, 706116, 743280, 882645, 941488, 1176860, 1412232, 1486560, 1765290, 1882976, 2353720, 2824464, 3530580, 4707440, 5648928, 7061160, 9414880, 14122320, 28244640]

約数ペア:

[(1, 28244640), (2, 14122320), (3, 9414880), (4, 7061160), (5, 5648928), (6, 4707440), (8, 3530580), (10, 2824464), (12, 2353720), (15, 1882976), (16, 1765290), (19, 1486560), (20, 1412232), (24, 1176860), (30, 941488), (32, 882645), (38, 743280), (40, 706116), (48, 588430), (57, 495520), (60, 470744), (76, 371640), (80, 353058), (95, 297312), (96, 294215), (114, 247760), (120, 235372), (152, 185820), (160, 176529), (163, 173280), (190, 148656), (228, 123880), (240, 117686), (285, 99104), (304, 92910), (326, 86640), (361, 78240), (380, 74328), (456, 61940), (480, 58843), (489, 57760), (570, 49552), (608, 46455), (652, 43320), (722, 39120), (760, 37164), (815, 34656), (912, 30970), (978, 28880), (1083, 26080), (1140, 24776), (1304, 21660), (1444, 19560), (1520, 18582), (1630, 17328), (1805, 15648), (1824, 15485), (1956, 14440), (2166, 13040), (2280, 12388), (2445, 11552), (2608, 10830), (2888, 9780), (3040, 9291), (3097, 9120), (3260, 8664), (3610, 7824), (3912, 7220), (4332, 6520), (4560, 6194), (4890, 5776), (5216, 5415)]