1780493060

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{787}}^1$

素因数の和:957

約数の個数: 96

約数和(自身を含む): 4003292160

約数和(自身を除く): 2222799100

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 89, 124, 155, 164, 178, 205, 310, 356, 410, 445, 620, 787, 820, 890, 1271, 1574, 1780, 2542, 2759, 3148, 3649, 3935, 5084, 5518, 6355, 7298, 7870, 11036, 12710, 13795, 14596, 15740, 18245, 24397, 25420, 27590, 32267, 36490, 48794, 55180, 64534, 70043, 72980, 97588, 113119, 121985, 129068, 140086, 161335, 226238, 243970, 280172, 322670, 350215, 452476, 487940, 565595, 645340, 700430, 1000277, 1131190, 1400860, 2000554, 2171333, 2262380, 2871763, 4001108, 4342666, 5001385, 5743526, 8685332, 10002770, 10856665, 11487052, 14358815, 20005540, 21713330, 28717630, 43426660, 57435260, 89024653, 178049306, 356098612, 445123265, 890246530, 1780493060]

約数ペア:

[(1, 1780493060), (2, 890246530), (4, 445123265), (5, 356098612), (10, 178049306), (20, 89024653), (31, 57435260), (41, 43426660), (62, 28717630), (82, 21713330), (89, 20005540), (124, 14358815), (155, 11487052), (164, 10856665), (178, 10002770), (205, 8685332), (310, 5743526), (356, 5001385), (410, 4342666), (445, 4001108), (620, 2871763), (787, 2262380), (820, 2171333), (890, 2000554), (1271, 1400860), (1574, 1131190), (1780, 1000277), (2542, 700430), (2759, 645340), (3148, 565595), (3649, 487940), (3935, 452476), (5084, 350215), (5518, 322670), (6355, 280172), (7298, 243970), (7870, 226238), (11036, 161335), (12710, 140086), (13795, 129068), (14596, 121985), (15740, 113119), (18245, 97588), (24397, 72980), (25420, 70043), (27590, 64534), (32267, 55180), (36490, 48794)]