31931970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:240

約数の個数: 128

約数和(自身を含む): 94556160

約数和(自身を除く): 62624190

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 53, 57, 70, 95, 105, 106, 114, 133, 151, 159, 190, 210, 265, 266, 285, 302, 318, 371, 399, 453, 530, 570, 665, 742, 755, 795, 798, 906, 1007, 1057, 1113, 1330, 1510, 1590, 1855, 1995, 2014, 2114, 2226, 2265, 2869, 3021, 3171, 3710, 3990, 4530, 5035, 5285, 5565, 5738, 6042, 6342, 7049, 8003, 8607, 10070, 10570, 11130, 14098, 14345, 15105, 15855, 16006, 17214, 20083, 21147, 24009, 28690, 30210, 31710, 35245, 40015, 40166, 42294, 43035, 48018, 56021, 60249, 70490, 80030, 86070, 100415, 105735, 112042, 120045, 120498, 152057, 168063, 200830, 211470, 240090, 280105, 301245, 304114, 336126, 456171, 560210, 602490, 760285, 840315, 912342, 1064399, 1520570, 1680630, 2128798, 2280855, 3193197, 4561710, 5321995, 6386394, 10643990, 15965985, 31931970]

約数ペア:

[(1, 31931970), (2, 15965985), (3, 10643990), (5, 6386394), (6, 5321995), (7, 4561710), (10, 3193197), (14, 2280855), (15, 2128798), (19, 1680630), (21, 1520570), (30, 1064399), (35, 912342), (38, 840315), (42, 760285), (53, 602490), (57, 560210), (70, 456171), (95, 336126), (105, 304114), (106, 301245), (114, 280105), (133, 240090), (151, 211470), (159, 200830), (190, 168063), (210, 152057), (265, 120498), (266, 120045), (285, 112042), (302, 105735), (318, 100415), (371, 86070), (399, 80030), (453, 70490), (530, 60249), (570, 56021), (665, 48018), (742, 43035), (755, 42294), (795, 40166), (798, 40015), (906, 35245), (1007, 31710), (1057, 30210), (1113, 28690), (1330, 24009), (1510, 21147), (1590, 20083), (1855, 17214), (1995, 16006), (2014, 15855), (2114, 15105), (2226, 14345), (2265, 14098), (2869, 11130), (3021, 10570), (3171, 10070), (3710, 8607), (3990, 8003), (4530, 7049), (5035, 6342), (5285, 6042), (5565, 5738)]