25451640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^2$

素因数の和:158

約数の個数: 144

約数和(自身を含む): 88522200

約数和(自身を除く): 63070560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 61, 72, 76, 90, 95, 114, 120, 122, 152, 171, 180, 183, 190, 228, 244, 285, 305, 342, 360, 366, 380, 456, 488, 549, 570, 610, 684, 732, 760, 855, 915, 1098, 1140, 1159, 1220, 1368, 1464, 1710, 1830, 2196, 2280, 2318, 2440, 2745, 3420, 3477, 3660, 3721, 4392, 4636, 5490, 5795, 6840, 6954, 7320, 7442, 9272, 10431, 10980, 11163, 11590, 13908, 14884, 17385, 18605, 20862, 21960, 22326, 23180, 27816, 29768, 33489, 34770, 37210, 41724, 44652, 46360, 52155, 55815, 66978, 69540, 70699, 74420, 83448, 89304, 104310, 111630, 133956, 139080, 141398, 148840, 167445, 208620, 212097, 223260, 267912, 282796, 334890, 353495, 417240, 424194, 446520, 565592, 636291, 669780, 706990, 848388, 1060485, 1272582, 1339560, 1413980, 1696776, 2120970, 2545164, 2827960, 3181455, 4241940, 5090328, 6362910, 8483880, 12725820, 25451640]

約数ペア:

[(1, 25451640), (2, 12725820), (3, 8483880), (4, 6362910), (5, 5090328), (6, 4241940), (8, 3181455), (9, 2827960), (10, 2545164), (12, 2120970), (15, 1696776), (18, 1413980), (19, 1339560), (20, 1272582), (24, 1060485), (30, 848388), (36, 706990), (38, 669780), (40, 636291), (45, 565592), (57, 446520), (60, 424194), (61, 417240), (72, 353495), (76, 334890), (90, 282796), (95, 267912), (114, 223260), (120, 212097), (122, 208620), (152, 167445), (171, 148840), (180, 141398), (183, 139080), (190, 133956), (228, 111630), (244, 104310), (285, 89304), (305, 83448), (342, 74420), (360, 70699), (366, 69540), (380, 66978), (456, 55815), (488, 52155), (549, 46360), (570, 44652), (610, 41724), (684, 37210), (732, 34770), (760, 33489), (855, 29768), (915, 27816), (1098, 23180), (1140, 22326), (1159, 21960), (1220, 20862), (1368, 18605), (1464, 17385), (1710, 14884), (1830, 13908), (2196, 11590), (2280, 11163), (2318, 10980), (2440, 10431), (2745, 9272), (3420, 7442), (3477, 7320), (3660, 6954), (3721, 6840), (4392, 5795), (4636, 5490)]