90820380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{599}}^1$

素因数の和:656

約数の個数: 144

約数和(自身を含む): 307238400

約数和(自身を除く): 216418020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 361, 380, 399, 420, 532, 570, 599, 665, 722, 798, 1083, 1140, 1198, 1330, 1444, 1596, 1797, 1805, 1995, 2166, 2396, 2527, 2660, 2995, 3594, 3610, 3990, 4193, 4332, 5054, 5415, 5990, 7188, 7220, 7581, 7980, 8386, 8985, 10108, 10830, 11381, 11980, 12579, 12635, 15162, 16772, 17970, 20965, 21660, 22762, 25158, 25270, 30324, 34143, 35940, 37905, 41930, 45524, 50316, 50540, 56905, 62895, 68286, 75810, 79667, 83860, 113810, 125790, 136572, 151620, 159334, 170715, 216239, 227620, 239001, 251580, 318668, 341430, 398335, 432478, 478002, 648717, 682860, 796670, 864956, 956004, 1081195, 1195005, 1297434, 1513673, 1593340, 2162390, 2390010, 2594868, 3027346, 3243585, 4324780, 4541019, 4780020, 6054692, 6487170, 7568365, 9082038, 12974340, 15136730, 18164076, 22705095, 30273460, 45410190, 90820380]

約数ペア:

[(1, 90820380), (2, 45410190), (3, 30273460), (4, 22705095), (5, 18164076), (6, 15136730), (7, 12974340), (10, 9082038), (12, 7568365), (14, 6487170), (15, 6054692), (19, 4780020), (20, 4541019), (21, 4324780), (28, 3243585), (30, 3027346), (35, 2594868), (38, 2390010), (42, 2162390), (57, 1593340), (60, 1513673), (70, 1297434), (76, 1195005), (84, 1081195), (95, 956004), (105, 864956), (114, 796670), (133, 682860), (140, 648717), (190, 478002), (210, 432478), (228, 398335), (266, 341430), (285, 318668), (361, 251580), (380, 239001), (399, 227620), (420, 216239), (532, 170715), (570, 159334), (599, 151620), (665, 136572), (722, 125790), (798, 113810), (1083, 83860), (1140, 79667), (1198, 75810), (1330, 68286), (1444, 62895), (1596, 56905), (1797, 50540), (1805, 50316), (1995, 45524), (2166, 41930), (2396, 37905), (2527, 35940), (2660, 34143), (2995, 30324), (3594, 25270), (3610, 25158), (3990, 22762), (4193, 21660), (4332, 20965), (5054, 17970), (5415, 16772), (5990, 15162), (7188, 12635), (7220, 12579), (7581, 11980), (7980, 11381), (8386, 10830), (8985, 10108)]