28707480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1399}}^1$

素因数の和:1438

約数の個数: 128

約数和(自身を含む): 100800000

約数和(自身を除く): 72092520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1399, 1710, 2052, 2280, 2565, 2798, 3420, 4104, 4197, 5130, 5596, 6840, 6995, 8394, 10260, 11192, 12591, 13990, 16788, 20520, 20985, 25182, 26581, 27980, 33576, 37773, 41970, 50364, 53162, 55960, 62955, 75546, 79743, 83940, 100728, 106324, 125910, 132905, 151092, 159486, 167880, 188865, 212648, 239229, 251820, 265810, 302184, 318972, 377730, 398715, 478458, 503640, 531620, 637944, 717687, 755460, 797430, 956916, 1063240, 1196145, 1435374, 1510920, 1594860, 1913832, 2392290, 2870748, 3189720, 3588435, 4784580, 5741496, 7176870, 9569160, 14353740, 28707480]

約数ペア:

[(1, 28707480), (2, 14353740), (3, 9569160), (4, 7176870), (5, 5741496), (6, 4784580), (8, 3588435), (9, 3189720), (10, 2870748), (12, 2392290), (15, 1913832), (18, 1594860), (19, 1510920), (20, 1435374), (24, 1196145), (27, 1063240), (30, 956916), (36, 797430), (38, 755460), (40, 717687), (45, 637944), (54, 531620), (57, 503640), (60, 478458), (72, 398715), (76, 377730), (90, 318972), (95, 302184), (108, 265810), (114, 251820), (120, 239229), (135, 212648), (152, 188865), (171, 167880), (180, 159486), (190, 151092), (216, 132905), (228, 125910), (270, 106324), (285, 100728), (342, 83940), (360, 79743), (380, 75546), (456, 62955), (513, 55960), (540, 53162), (570, 50364), (684, 41970), (760, 37773), (855, 33576), (1026, 27980), (1080, 26581), (1140, 25182), (1368, 20985), (1399, 20520), (1710, 16788), (2052, 13990), (2280, 12591), (2565, 11192), (2798, 10260), (3420, 8394), (4104, 6995), (4197, 6840), (5130, 5596)]