18302440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{577}}^1$

素因数の和:662

約数の個数: 64

約数和(自身を含む): 45153360

約数和(自身を除く): 26850920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 577, 610, 793, 1154, 1220, 1586, 2308, 2440, 2885, 3172, 3965, 4616, 5770, 6344, 7501, 7930, 11540, 15002, 15860, 23080, 30004, 31720, 35197, 37505, 60008, 70394, 75010, 140788, 150020, 175985, 281576, 300040, 351970, 457561, 703940, 915122, 1407880, 1830244, 2287805, 3660488, 4575610, 9151220, 18302440]

約数ペア:

[(1, 18302440), (2, 9151220), (4, 4575610), (5, 3660488), (8, 2287805), (10, 1830244), (13, 1407880), (20, 915122), (26, 703940), (40, 457561), (52, 351970), (61, 300040), (65, 281576), (104, 175985), (122, 150020), (130, 140788), (244, 75010), (260, 70394), (305, 60008), (488, 37505), (520, 35197), (577, 31720), (610, 30004), (793, 23080), (1154, 15860), (1220, 15002), (1586, 11540), (2308, 7930), (2440, 7501), (2885, 6344), (3172, 5770), (3965, 4616)]