18278190

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1$

素因数の和:551

約数の個数: 128

約数和(自身を含む): 58752000

約数和(自身を除く): 40473810

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 30, 35, 38, 42, 45, 54, 57, 63, 70, 90, 95, 105, 114, 126, 133, 135, 171, 189, 190, 210, 266, 270, 285, 315, 342, 378, 399, 509, 513, 570, 630, 665, 798, 855, 945, 1018, 1026, 1197, 1330, 1527, 1710, 1890, 1995, 2394, 2545, 2565, 3054, 3563, 3591, 3990, 4581, 5090, 5130, 5985, 7126, 7182, 7635, 9162, 9671, 10689, 11970, 13743, 15270, 17815, 17955, 19342, 21378, 22905, 27486, 29013, 32067, 35630, 35910, 45810, 48355, 53445, 58026, 64134, 67697, 68715, 87039, 96201, 96710, 106890, 135394, 137430, 145065, 160335, 174078, 192402, 203091, 261117, 290130, 320670, 338485, 406182, 435195, 481005, 522234, 609273, 676970, 870390, 962010, 1015455, 1218546, 1305585, 1827819, 2030910, 2611170, 3046365, 3655638, 6092730, 9139095, 18278190]

約数ペア:

[(1, 18278190), (2, 9139095), (3, 6092730), (5, 3655638), (6, 3046365), (7, 2611170), (9, 2030910), (10, 1827819), (14, 1305585), (15, 1218546), (18, 1015455), (19, 962010), (21, 870390), (27, 676970), (30, 609273), (35, 522234), (38, 481005), (42, 435195), (45, 406182), (54, 338485), (57, 320670), (63, 290130), (70, 261117), (90, 203091), (95, 192402), (105, 174078), (114, 160335), (126, 145065), (133, 137430), (135, 135394), (171, 106890), (189, 96710), (190, 96201), (210, 87039), (266, 68715), (270, 67697), (285, 64134), (315, 58026), (342, 53445), (378, 48355), (399, 45810), (509, 35910), (513, 35630), (570, 32067), (630, 29013), (665, 27486), (798, 22905), (855, 21378), (945, 19342), (1018, 17955), (1026, 17815), (1197, 15270), (1330, 13743), (1527, 11970), (1710, 10689), (1890, 9671), (1995, 9162), (2394, 7635), (2545, 7182), (2565, 7126), (3054, 5985), (3563, 5130), (3591, 5090), (3990, 4581)]