172906940

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{593}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 371226240

約数和(自身を除く): 198319300

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 239, 244, 305, 478, 593, 610, 956, 1186, 1195, 1220, 2372, 2390, 2965, 4780, 5930, 11860, 14579, 29158, 36173, 58316, 72346, 72895, 141727, 144692, 145790, 180865, 283454, 291580, 361730, 566908, 708635, 723460, 1417270, 2834540, 8645347, 17290694, 34581388, 43226735, 86453470, 172906940]

約数ペア:

[(1, 172906940), (2, 86453470), (4, 43226735), (5, 34581388), (10, 17290694), (20, 8645347), (61, 2834540), (122, 1417270), (239, 723460), (244, 708635), (305, 566908), (478, 361730), (593, 291580), (610, 283454), (956, 180865), (1186, 145790), (1195, 144692), (1220, 141727), (2372, 72895), (2390, 72346), (2965, 58316), (4780, 36173), (5930, 29158), (11860, 14579)]