28264860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:332

約数の個数: 144

約数和(自身を含む): 94663296

約数和(自身を除く): 66398436

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 47, 52, 60, 65, 78, 90, 94, 117, 130, 141, 156, 180, 188, 195, 234, 235, 257, 260, 282, 390, 423, 468, 470, 514, 564, 585, 611, 705, 771, 780, 846, 940, 1028, 1170, 1222, 1285, 1410, 1542, 1692, 1833, 2115, 2313, 2340, 2444, 2570, 2820, 3055, 3084, 3341, 3666, 3855, 4230, 4626, 5140, 5499, 6110, 6682, 7332, 7710, 8460, 9165, 9252, 10023, 10998, 11565, 12079, 12220, 13364, 15420, 16705, 18330, 20046, 21996, 23130, 24158, 27495, 30069, 33410, 36237, 36660, 40092, 46260, 48316, 50115, 54990, 60138, 60395, 66820, 72474, 100230, 108711, 109980, 120276, 120790, 144948, 150345, 157027, 181185, 200460, 217422, 241580, 300690, 314054, 362370, 434844, 471081, 543555, 601380, 628108, 724740, 785135, 942162, 1087110, 1413243, 1570270, 1884324, 2174220, 2355405, 2826486, 3140540, 4710810, 5652972, 7066215, 9421620, 14132430, 28264860]

約数ペア:

[(1, 28264860), (2, 14132430), (3, 9421620), (4, 7066215), (5, 5652972), (6, 4710810), (9, 3140540), (10, 2826486), (12, 2355405), (13, 2174220), (15, 1884324), (18, 1570270), (20, 1413243), (26, 1087110), (30, 942162), (36, 785135), (39, 724740), (45, 628108), (47, 601380), (52, 543555), (60, 471081), (65, 434844), (78, 362370), (90, 314054), (94, 300690), (117, 241580), (130, 217422), (141, 200460), (156, 181185), (180, 157027), (188, 150345), (195, 144948), (234, 120790), (235, 120276), (257, 109980), (260, 108711), (282, 100230), (390, 72474), (423, 66820), (468, 60395), (470, 60138), (514, 54990), (564, 50115), (585, 48316), (611, 46260), (705, 40092), (771, 36660), (780, 36237), (846, 33410), (940, 30069), (1028, 27495), (1170, 24158), (1222, 23130), (1285, 21996), (1410, 20046), (1542, 18330), (1692, 16705), (1833, 15420), (2115, 13364), (2313, 12220), (2340, 12079), (2444, 11565), (2570, 10998), (2820, 10023), (3055, 9252), (3084, 9165), (3341, 8460), (3666, 7710), (3855, 7332), (4230, 6682), (4626, 6110), (5140, 5499)]