172860860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 399168000

約数和(自身を除く): 226307140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 71, 76, 86, 95, 142, 149, 172, 190, 215, 284, 298, 355, 380, 430, 596, 710, 745, 817, 860, 1349, 1420, 1490, 1634, 2698, 2831, 2980, 3053, 3268, 4085, 5396, 5662, 6106, 6407, 6745, 8170, 10579, 11324, 12212, 12814, 13490, 14155, 15265, 16340, 21158, 25628, 26980, 28310, 30530, 32035, 42316, 52895, 56620, 58007, 61060, 64070, 105790, 116014, 121733, 128140, 201001, 211580, 232028, 243466, 290035, 402002, 454897, 486932, 580070, 608665, 804004, 909794, 1005005, 1160140, 1217330, 1819588, 2010010, 2274485, 2434660, 4020020, 4548970, 8643043, 9097940, 17286086, 34572172, 43215215, 86430430, 172860860]

約数ペア:

[(1, 172860860), (2, 86430430), (4, 43215215), (5, 34572172), (10, 17286086), (19, 9097940), (20, 8643043), (38, 4548970), (43, 4020020), (71, 2434660), (76, 2274485), (86, 2010010), (95, 1819588), (142, 1217330), (149, 1160140), (172, 1005005), (190, 909794), (215, 804004), (284, 608665), (298, 580070), (355, 486932), (380, 454897), (430, 402002), (596, 290035), (710, 243466), (745, 232028), (817, 211580), (860, 201001), (1349, 128140), (1420, 121733), (1490, 116014), (1634, 105790), (2698, 64070), (2831, 61060), (2980, 58007), (3053, 56620), (3268, 52895), (4085, 42316), (5396, 32035), (5662, 30530), (6106, 28310), (6407, 26980), (6745, 25628), (8170, 21158), (10579, 16340), (11324, 15265), (12212, 14155), (12814, 13490)]