245428680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1861}}^1$

素因数の和:2039

約数の個数: 128

約数和(自身を含む): 847284480

約数和(自身を除く): 601855800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 157, 168, 210, 280, 314, 420, 471, 628, 785, 840, 942, 1099, 1256, 1570, 1861, 1884, 2198, 2355, 3140, 3297, 3722, 3768, 4396, 4710, 5495, 5583, 6280, 6594, 7444, 8792, 9305, 9420, 10990, 11166, 13027, 13188, 14888, 16485, 18610, 18840, 21980, 22332, 26054, 26376, 27915, 32970, 37220, 39081, 43960, 44664, 52108, 55830, 65135, 65940, 74440, 78162, 104216, 111660, 130270, 131880, 156324, 195405, 223320, 260540, 292177, 312648, 390810, 521080, 584354, 781620, 876531, 1168708, 1460885, 1563240, 1753062, 2045239, 2337416, 2921770, 3506124, 4090478, 4382655, 5843540, 6135717, 7012248, 8180956, 8765310, 10226195, 11687080, 12271434, 16361912, 17530620, 20452390, 24542868, 30678585, 35061240, 40904780, 49085736, 61357170, 81809560, 122714340, 245428680]

約数ペア:

[(1, 245428680), (2, 122714340), (3, 81809560), (4, 61357170), (5, 49085736), (6, 40904780), (7, 35061240), (8, 30678585), (10, 24542868), (12, 20452390), (14, 17530620), (15, 16361912), (20, 12271434), (21, 11687080), (24, 10226195), (28, 8765310), (30, 8180956), (35, 7012248), (40, 6135717), (42, 5843540), (56, 4382655), (60, 4090478), (70, 3506124), (84, 2921770), (105, 2337416), (120, 2045239), (140, 1753062), (157, 1563240), (168, 1460885), (210, 1168708), (280, 876531), (314, 781620), (420, 584354), (471, 521080), (628, 390810), (785, 312648), (840, 292177), (942, 260540), (1099, 223320), (1256, 195405), (1570, 156324), (1861, 131880), (1884, 130270), (2198, 111660), (2355, 104216), (3140, 78162), (3297, 74440), (3722, 65940), (3768, 65135), (4396, 55830), (4710, 52108), (5495, 44664), (5583, 43960), (6280, 39081), (6594, 37220), (7444, 32970), (8792, 27915), (9305, 26376), (9420, 26054), (10990, 22332), (11166, 21980), (13027, 18840), (13188, 18610), (14888, 16485)]